He is not omnipresent. Who argues that? He can only be in one place at the one time. If he is on earth then he is not in heaven. If he is in heaven then he is not on earth. Hello! That is not hard to grasp.
We need to remember that Satan had legal grounds before the cross to accuse the people of God because (1) man willfully transgressed the law of God and (2) the penalty for sin had not been paid for. Job locates Satan in heaven accusing God's elect during the old covenant period. Justice demanded that sin must be punished. When Jesus took our punishment upon Himself, He paid the full and final penalty for sin. He took man’s place. He was man’s substitute. He died a vicarious death.
Revelation shows a war in heaven. It locates Satan in heaven. This occurred after the resurrection/ascension. Why? Before the cross, Satan had the right to access heaven and point the finger at God's elect because the debt for sin had not been paid. After this, he lost all legal grounds to accuse. Satan has lost his accusing seat in heaven. He no longer had anything to accuse the elect over. The penalty is paid. Because of this, we learn in Romans 8:34: "Who is he that condemneth? It is Christ that died, yea rather, that is risen again, who is even at the right hand of God, who also maketh intercession for us.
John 12:31-33 and Revelation 12:9 show that the devil was cast down after the man-child was caught up. You have no answer to that. Satan had to first be cast down. He had to be defeated. Christ’s life, death and resurrection safely secured that. As a result, the Church becomes a militant overcoming organism.
Why would Jesus make intercession against Satan, if Satan was no longer an accuser of the brethren?
"And I heard a loud voice saying in heaven, Now is come salvation, and strength, and the kingdom of our God, and the power of his Christ: for the accuser of our brethren is cast down, which accused them before our God day and night. And they overcame him by the blood of the Lamb, and by the word of their testimony; and they loved not their lives unto the death. Therefore rejoice, ye heavens, and ye that dwell in them. Woe to the inhabiters of the earth and of the sea! for the devil is come down unto you, having great wrath, because he knoweth that he hath but a short time. And when the dragon saw that he was cast unto the earth, he persecuted the woman which brought forth the man child."
Satan was never bound at this point, but sets up his Babylonian empire. His short time span of 42 months.
Are you declaring that Jesus was only making intercession on a throne from Adam to His birth, where he left for earth, Himself?
And has not had to make intercession once after His birth? Revelation 12 is a parenthetical chapter only about the events of the 7th Trumpet. Was the 7th Trumpet an event at the birth of Jesus?
Revelation 12 is not a chronological order to be followed, as it is a parenthetical, and not part of Revelation's chronology. The chapter introduces the term dragon, which had not yet been given to Satan, until the 7th Trumpet.
At some point in the chapter, it has to be about the 7th Trumpet. You also have to decide when those rebel angels were cast out, bound, released and cast out again.
Jude 1:6
"And the angels which kept not their first estate, but left their own habitation, he hath reserved in everlasting chains under darkness unto the judgment of the great day."
What does reserved unto the judgment mean to you? What Judgment? The birth of Jesus?
The 5th Trumpet? When were they bound?
When are they loosed to be once again cast out of heaven?
Are there two sets of angels who rebelled? One at the beginning, when Satan rebelled, and one again at the birth of Jesus? It makes no sense to declare the angels were cast out of heaven at the birth of Jesus, if they were still bound until the day of judgment.
It does make sense that the 5th Trumpet was when they were loosed, and by the 7th Trumpet had to be kicked out of heaven one last time.
Jesus has been making intercession for the last 1993 years, because Satan has been accusing the brethren night and day since then. The 7th Trumpet declares the end of time for Daniel's 70 weeks and Adam's 6,000 years of punishment passed down to all his descendants.
That is why Satan is cast out. No one will be accused in their permanent incorruptible physical bodies with everlasting righteousness, and no sin present in the world. That is why Satan is bound for a thousand years to not deceive people to turn against God. Like he deceived a third of the angels, and Eve.